package cn.eric.game.swing;

import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class TestSlider {
	   private JFrame mainFrame;
	   private JLabel headerLabel;
	   private JLabel statusLabel;
	   private JPanel controlPanel;

	   public TestSlider(){
	      prepareGUI();
	   }

	   public static void main(String[] args){
		  TestSlider  swingControlDemo = new TestSlider();      
	      swingControlDemo.showSliderDemo();
	   }

	   private void prepareGUI(){
	      mainFrame = new JFrame("Java Swing Examples");
	      mainFrame.setSize(400,400);
	      mainFrame.setLayout(new GridLayout(3, 1));
	      mainFrame.addWindowListener(new WindowAdapter() {
	         public void windowClosing(WindowEvent windowEvent){
	            System.exit(0);
	         }        
	      });    
	      headerLabel = new JLabel("", JLabel.CENTER);        
	      statusLabel = new JLabel("",JLabel.CENTER);    

	      statusLabel.setSize(350,100);

	      controlPanel = new JPanel();
	      controlPanel.setLayout(new FlowLayout());

	      mainFrame.add(headerLabel);
	      mainFrame.add(controlPanel);
	      mainFrame.add(statusLabel);
	      mainFrame.setVisible(true);  
	   }

	   private void showSliderDemo(){
		  int max = 4000;
	      headerLabel.setText("Control in action: JSlider"); 
	      JSlider slider= new JSlider(JSlider.HORIZONTAL,0,max,10);
	      slider.addChangeListener(new ChangeListener() {
	         public void stateChanged(ChangeEvent e) {
	            statusLabel.setText("Value : " 
	            + ((JSlider)e.getSource()).getValue());
	         }
	      });
	      controlPanel.add(slider);      
	      mainFrame.setVisible(true);     
	   } 
}
